Why do some women have moustaches and others don't? Can you prevent your breasts from sagging? What's a normal vaginal discharge? Experts give the details on the questions some women are just too embarrassed to ask.

Men and women are different. Bet you didn’t know that. OK, so some of the differences are kind of apparent—enough that the claim that half of us are from Mars and the other half from Venus seems somewhat plausible. But then there are the things you can’t detect—things only science or medicine could discover— the hows and whys and even some of the whats.

Satisfy your medicine curiosity with answers to seven questions we bet you've never gotten a satisfactory answer to. Like, just what are those TV doctors talking about when they call for 1 cc of something—stat?